各种ZODB blobstorage布局之间有什么区别？

Question

ZODB blobstorage目录包含一个.layout文件，其字符串为“lawn”、“bushy”。在

各种blob存储目录格式之间有什么区别？在

Answer 1

解释如下：http://svn.zope.org/ZODB/trunk/src/ZODB/tests/blob_layout.txt?rev=101802&view=markup

自由贸易协定：

======================

Blob directory layouts

The internal structure of the blob directories is governed by so called layouts. The current default layout is called bushy.

The original blob implementation used a layout that we now call lawn and which is still available for backwards compatibility.

Layouts implement two methods: one for computing a relative path for an OID and one for turning a relative path back into an OID.

Our terminology is roughly the same as used in DirectoryStorage.

它还详细解释了格式。在

Answer 2

通常不需要担心布局；lawn只是为了向后兼容。在

如果您确实有一个lawn布局blobstorage（如果有，日志中会出现警告），并希望迁移到bushy布局，请使用migrateblobs脚本；下面是创建脚本的构建部分：

[migrateblobs]
recipe = zc.recipe.egg
eggs = ZODB3
entry-points = migrateblobs=ZODB.scripts.migrateblobs:main

关闭所有实例和ZEO服务器，备份blob存储并在blobstorage目录上运行脚本：

^{pr2}$

var/blobstorage将使用bushy布局包含迁移的blob。在